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SPIETH Locknuts
Series MSW - Metric

CAD models are available through the table below.

Designation of a locknut with
d1 = M 30 x 1.5 and length = 28 mm:
Locknut MSW 30.28
The allowable axial loads specified in the
table are guideline values calculated with a
safety margin of 1.6
— under static load, based on the minimum
yield point,
— under dynamic loads, based on the minimum
fatigue strength.

Series MSA Locknuts with reduced contact surface and in some cases smaller outside diameters relative to the MSR series are particularly suited for mounting angular ball bearings and cylinder roller bearings of ISO diameter series 9.

d1 x pitch)

MSW
size
(thread x length)

Click Part # for CAD

 Dimensions in mm Clamp Screws Calculation
factor

A

 Locknut-specific allowance

B

Allowable axial load

 Mass moment of inertia

J
d1

(d1 x pitch)

 d2 d3 h C b 1) t Sizes n Ts dyn. stat.
ISO - 5H SHCS Qty Nm mm N kN kN kg cm2
LIGHT SERIES
MSW 20 x 28
M 20x1.5 42 38 28 11 6 2.5 M 4x16 4 2.9 1.344 1560 57 80 0.4860
MSW 25 x 28
M 25x1.5 47 43 28 11 7 3 M 4x16 4 2.9 1.633 1560 68 102 0.7419
MSW 30 x 28
M 30x1.5 52 48 28 11 7 3 M 4x16 4 2.9 1.921 1560 77 123 1.0853
MSW 35 x 28
M 35x1.5 60 53 28 11 8 3.5 M 4x16 4 2.9 2.210 1560 88 144 1.8034
MSW 40 x 28
M 40x1.5 65 58 28 11 8 3.5 M 4x16 4 2.9 2.500 1560 97 165 2.4259
MSW 45 x 28
M 45x1.5 70 63 28 11 8 3.5 M 4x16 6 2.9 2.789 2340 105 184 3.1432
MSW 50 x 32
M 50x1.5 75 68 32 11 8 3.5 M 4x16 6 2.9 3.079 2340 147 267 4.7785
HEAVY SERIES
MSW 20 x 40
M 20x1.5 52 42 40 11 7 3 M 4x20 4 2.9 1.344 936 110 156 1.7401
MSW 25 x 40
M 25x1.5 62 47 40 11 8 3.5 M 4x20 4 2.9 1.633 936 131 196 3.4125
MSW 30 x 44
M 30x1.5 68 57 44 11 8 3.5 M 4x20 4 2.9 1.921 936 172 273 5.5377
MSW 35 x 44
M 35x1.5 73 60 44 11 8 3.5 M 4x20 4 2.9 2.210 936 195 320 7.4069
MSW 40 x 44
M 40x1.5 75 62 44 11 8 3.5 M 4x20 4 2.9 2.500 936 215 367 7.9830
MSW 45 x 44
M 45x1.5 90 70 44 11 10 4 M 4x20 6 2.9 2.789 1404 234 410 16.4246
MSW 50 x 46
M 50x1.5 95 75 46 11 10 4 M 4x20 6 2.9 3.079 1404 268 488 21.3395
MSW 55 x 46
M 55x1.5 100 80 46 12 10 4 M 5x25 6 6.0 3.369 2286 272 504 23.5948
MSW 60 x 46
M 60x1.5 100 85 46 12 10 4 M 5x25 6 6.0 3.655 2286 294 551 24.7692
MSW 65 x 46
M 65x1.5 110 90 46 12 10 4 M 5x25 6 6.0 3.948 2286 314 598 35.8605
MSW 70 x 46
M 70x1.5 115 95 46 12 10 4 M 5x25 6 6.0 4.238 2286 333 645 42.2151

1) In same quantity as clamp screws. Specifications are subject to change without notice.
Spanner wrenches available upon request. Specials available upon request.

The high loads are reliably transmitted to the feed drive thru the rigid locknut. The excellent locking properties of the locknut are of major importance under dynamic loads.

   

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